An Approximate Method for the Calculation of Airplane Radius Factor PDF Download

Author: Richard Schamberg
Publisher:
ISBN:
Category : Airplanes, Military
Languages : en
Pages : 32

View

Book Description

Author: C. M. Weber
Publisher:
ISBN:
Category : Air warfare
Languages : en
Pages : 60

View

Book Description
An extension and revision of the HARD-1 (Handy Approximate Radius Determination) combat radius calculation procedure described in RM-5280 for aircraft carrying external stores. HARD-3 calculates the radius capability for a particular aircraft having known climb and cruise performance, fuel consumption, drag, etc. The method is somewhat more complex than HARD-1 but it provides greater flexibility and improved accuracy: a wider choice in cruise conditions is now available, and the effect on radius of non-distance-gaining fuel allowances is computed more accurately. The computer program allows for variation in the disposition of empty fuel tanks and for target-bound refueling. Although designed specifically for a ground-attack mission, the procedure may be adapted for other missions. The results compare favorably with estimates made by following the mission-planning procedures described in military flight manuals. The JOSS program is included, along with a sample set of calculations and an explanation of the equations used. (Author).

Author: Charlie M. Jackson
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 36

View

Book Description
An approximate method for calculating climb and acceleration performance of an air-breathing aircraft has been developed. Basically, the method involves linearization of the equations of motion to obtain closed-form expressions for the desired performance parameters. These expressions are applied over finite velocity intervals where the aerodynamic, propulsion, and flight-path parameters are assumed to be constant. The method is extended by a rapidly convergent iteration procedure to estimate the climb performance for a flight path limited by sonic-boom considerations. Typical examples are presented where the performance is estimated for an air-breathing boost mission to hypersonic speeds and for a complete supersonic-transport mission. The examples illustrate the simplicity of the method and show that the estimated performance is in good agreement with the results of a numerical integration of the equations of motion. The application of the approximate method to these examples indicates the utility of the method for producing performance estimates suitable for preliminary airframe design, sizing studies, propulsion-system evaluation, and cursory heat-transfer and inlet-flow-field determinations along a flight path. In order to increase the utility of the method further, nomograms are presented which provide rapid solutions to the approximate performance equations.

Author: Oscar Sherman Adams
Publisher:
ISBN:
Category : Coordinates
Languages : en
Pages : 750

View

Book Description

Author: Rand Corporation
Publisher:
ISBN:
Category : Abstracts
Languages : en
Pages : 802

View

Book Description
Includes publications previously listed in the supplements to the Index of selected publications of the Rand Corportation (Oct. 1962-Feb. 1963)

Author: Rand Corporation
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 812

View

Book Description

Author: National Symposium on Fracture Mechanics
Publisher: ASTM International
ISBN: 9780803103641
Category : Technology & Engineering
Languages : en
Pages : 808

View

Book Description

Author: Thomas A. Cruse
Publisher: ASTM International
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 796

View

Book Description

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 660

View

Book Description

Author: Rand Corporation
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 848

View

Book Description